30320302212 has 96 divisors (see below), whose sum is σ = 79878207360. Its totient is φ = 9944726400.

The previous prime is 30320302127. The next prime is 30320302223. The reversal of 30320302212 is 21220302303.

It is a happy number.

30320302212 is a `hidden beast` number, since 30 + 320 + 302 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1769478 + ... + 1786530.

It is an arithmetic number, because the mean of its divisors is an integer number (832064660).

Almost surely, 2^30320302212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30320302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39939103680).

30320302212 is an abundant number, since it is smaller than the sum of its proper divisors (49557905148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30320302212 is a wasteful number, since it uses less digits than its factorization.

30320302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330 (or 17322 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30320302212 its reverse (21220302303), we get a palindrome (51540604515).

Subtracting from 30320302212 its reverse (21220302303), we obtain a palindrome (9099999909).

The spelling of 30320302212 in words is "thirty billion, three hundred twenty million, three hundred two thousand, two hundred twelve".